“Attendant lord” referring possibly to Polonius, who while he was respected for taking the “safe route,” put up face but was shown to be the fool. In Hamlet, Polonius also makes reference to being a crab, possibly linked with Eliot’s earlier talk of crabs in the poem.
However, Eliot mostly likely has in mind the courtiers Rosencrantz and Guildenstern, Hamlet’s former buddies turned spies for the King, or the absurd courtier Osric who appears in Act V.
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